The powerful adsorption capabilities of our line of high-affinity adsorbents are achieved by organizing cup shaped cyclodextrins into a high-surface area, high-affinity polymer network with porous, crosslinked pathways through which micropollutants are drawn in and trapped within the cyclodextrin cups.
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High-Affinity Porous
Polymer Network
Adsorption Kinetics
Our HACP adsorbents combine a porous ultra-high-surface area with the high affinity property of cyclodextrins making them ideally suited for the instant removal of micropollutants from water at trace concentrations of one part per billion or less.  Removal interactions occur within the .78 nanometer cyclodextrin cups, which form optimally-sized inclusion complexes to host the attraction and capture of toxic micropollutants. The networked cyclodextrin cups form a molecular net in which pollutants are captured and removed from water. It is this molecular level of operation that gives our adsorbents their exacting nature and breakthrough effectiveness.
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High-Affinity Porous
Polymer Network

The cyclodextrin "cups" in our HACP adsorbents are less than one nanometer in diameter, creating size-exclusion to resist fouling by natural organic particulates and larger inert molecules. In addition, by varying the crosslinking compounds, our adsorbents can be formulated to further enhance attraction to targeted contaminants.
PFOS Contaminants
with Natural Organic Particulates (brown shapes)
Cyclodextrin - Nature's Adsorbent
Cyclodextrins are a family of sugars that are renewable and readily made from cornstarch. Within their three dimensional cup-shaped structure, cyclodextrins feature 0.78 nm high-affinity, hydrophobic pockets which form host-guest complexes to adsorb micropollutants and other contaminants. Cyclodextrins are classified as Generally Recognized As Safe (GRAS) by the U.S. Food & Drug Administration.
.78 nanometer
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About Cyclodextrin
The World's First High-Affinity Cyclodextrin Polymer (HACP) Adsorbent
Our adsorbents are formed by linking low-cost cyclodextrins with specific monomers into insoluble networks of repeating structures that create porous pathways for pollutants to access the adsorbent cyclodextrin cups. The linking network and porous pathways in our adsorbents can be tuned through substitution of the crosslinked monomer to target specific contaminants.
High-Affinity Porous
Polymer Network
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CycloPure Technology
Research & Technology Center
​8045 N. Lamon, Suite 140
Skokie IL 60077
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​​171 Saxony Road, Suite 208
Encinitas CA 92024
(844) 796-9717
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